Efficient Intra Mode Decision for AVS to H.264/AVC Transcoding

Author

Wang Minyue ; Sun Guangmin ; Wu Qiang

Author_Institution

Beijing Univ. of Technol., Beijing

fYear

2007

fDate

15-18 Dec. 2007

Firstpage

948

Lastpage

951

Abstract

This paper presents an AVS to H.264 Intra video transcoder. AVS is the latest video coding standard developed by China. The two video coding standards will coexist in the market in the future, so it is necessary to transcode the AVS to H.264. The INTRA16xl6 vs. INTRA4x4 MB coding mode decision is made based on the variance of the ICT coefficients of the 8x8 blocks in the input AVS video. Then, the prediction mode will be decided using a fast mapping algorithm. The proposed approach completely avoids the MB mode and prediction mode computations in the H.264 encoding stage, the results show that our approach results in over 60% drop in encoding time with a negligible drop in PSNR.

Keywords

transcoding; transforms; video coding; AVS; H.264/AVC transcoding; integer cosine transform; intra mode decision; video coding standard; Automatic voltage control; Consumer electronics; Control engineering; Educational institutions; Encoding; PSNR; Paper technology; Standards development; Transcoding; Video coding; AVS; H. 264; ICT coefficients; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2007 IEEE International Symposium on

Conference_Location

Giza

Print_ISBN

978-1-4244-1835-0

Electronic_ISBN

978-1-4244-1835-0

Type

conf

DOI

10.1109/ISSPIT.2007.4458052

Filename

4458052